Express-signal



(No Model.)

A. GRAAWF0RD.

EXPRESS SIGNAL.. No. 274,726.

Pamtea Man 21, 188s.

Zay/9.

KRS

SIG-NAL MEM/aww.

UNITED STATES PATENT OFFICE.

`AITGS CRAWFORD, OF BOSTON, MASSACHUSETTS.

EXPRESS-sle'NAL.

SPECIFICATION forming part of Letters Patent No. 274,726, dated `March27,1883.

' Application meticuly 8,1882. (No model.)

To all whom it may concern.:

Be it known that I, ANeUs CRAWFORD, a subject of Great -Britaimresidingat Boston, in the county of Suffolk and State of Massachusetts, haveinvented anew and useful Improvement in Express-Sgnalmot' which thefollowing Iis a specification, reference being had to the accompanyingdrawings, forming part thereof. v

My invention consists of an improved form of express-signals in whichthe signal-arms are operated by means of levers and ratchets; and theobject of my invention is to provide aconvenient and conspicuous mode ofsignaling for the various express companies, &c., to

call.

In the accompanying drawings, Figure l givesa side view of theexpress-signal, showing how it isoperated. A is the lever. B is thefulcrum of the lever. C is the line or chain connecting lever withsignal-arm. D D are frictionrol1ers over which the line C works. E Eshow one signal-arm extended and the others lowered. F is aratchetholdingthe lever in place. Gr is the thumb-'piece for lowering thesignal-arm. H is a spring at the back of the thumb-piece.

Fig. 2 gives a perspective view of the express-signal with all the armsE lowered. A, lever-handles; G, thumb-pieces. Theexpress-signal boxcontains a number of arms painted in distinguishing colors, and bearingthe names the arm to fall.

The ratchet and .lever can bearranged to operate either from the front,rear, or side, as may be most convenient.

Having fullyr described my invention, what I claim, and desire to secureby Letters Patent of the United States, is

1. An express-signal consisting of arms E, adapted to Work on one commonpivot, and operated, by means of cords C, over rollers D D by levers Aand ratchets F, substantially as described.'

2. In combination with an express-signal having arms E, the levers A,Irollers D D, cords C, ratchets F, and thumb-pieces Gr, substantially asand for the purpose described.

ANGUS CRAWFORD.

Witnesses:

FRANKLIN HEDGE, EDWIN J. BONE.

